Which statement correctly describes an atom of the element helium? (9)

1 answer:

8 0

C. An atom of helium has its valence electrons in its first energy level, it wouldn't and can't satisfy the Octet rule as it only has 2 electrons, but with 2, it has a full shell, as the first energy level can hold only 2 electrons.

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Which half-reaction is most easily oxidized?

netineya [11]

From the ones that you are showing me <span>the more positive the potential the more likely: </span>

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Name this compound (ignore Stereocenter)<br>

anyanavicka [17]

Compound name:

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What is the oxidation state of Hydrogen in H20<br><br> +2<br> +1<br> -2<br> -1

xeze [42]

<h3>What is the oxidation number of oxygen in H2O?</h3>

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2 years ago

A student sets up the following equation to convert a measurement.

dybincka [34]

Answer:

$\frac{1 m}{100 cm}$

Explanation:

The final answer has a different set of units. In particular, meters (m) changes to centimeters (cm). To make this change, you need to multiply the first value by proportions.

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The full expression:

As you can see, the old unit (m) cancels out and you are left with cm in the denominator.

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